Commit Graph

1230 Commits

Author SHA1 Message Date
Jason Wang
6a756d1495 vhost_net: do not assume nvqs is always 2
This patch switches to initialize dev.nvqs from the VhostNetOptions
instead of assuming it was 2. This is useful for implementing control
virtqueue support which will be a single vhost_net structure with a
single cvq.

Note that nvqs is still set to 2 for all users and this patch does not
change functionality.

Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Reviewed-by: Eli Cohen <elic@nvidia.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Message-Id: <20210903091031.47303-6-jasowang@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2021-09-04 17:34:05 -04:00
Jason Wang
40f962ffeb vhost_net: remove the meaningless assignment in vhost_net_start_one()
The nvqs and vqs have been initialized during vhost_net_init() and are
not expected to change during the life cycle of vhost_net
structure. So this patch removes the meaningless assignment.

Reviewed-by: Eli Cohen <elic@nvidia.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Message-Id: <20210903091031.47303-4-jasowang@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2021-09-04 17:34:05 -04:00
Christina Wang
cfe6d6841f hw/net: e1000e: Don't zero out the VLAN tag in the legacy RX descriptor
In the legacy RX descriptor mode, VLAN tag was saved to d->special
by e1000e_build_rx_metadata() in e1000e_write_lgcy_rx_descr(), but
it was then zeroed out again at the end of the call, which is wrong.

Fixes: c89d416a2b ("e1000e: Don't zero out buffer address in rx descriptor")
Reported-by: Markus Carlstedt <markus.carlstedt@windriver.com>
Signed-off-by: Christina Wang <christina.wang@windriver.com>
Signed-off-by: Bin Meng <bin.meng@windriver.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2021-08-02 12:19:18 +08:00
Christina Wang
d897056960 hw/net: e1000e: Correct the initial value of VET register
The initial value of VLAN Ether Type (VET) register is 0x8100, as per
the manual and real hardware.

While Linux e1000e driver always writes VET register to 0x8100, it is
not always the case for everyone. Drivers relying on the reset value
of VET won't be able to transmit and receive VLAN frames in QEMU.

Unlike e1000 in QEMU, e1000e uses a field 'vet' in "struct E1000Core"
to cache the value of VET register, but the cache only gets updated
when VET register is written. To always get a consistent VET value
no matter VET is written or remains its reset value, drop the 'vet'
field and use 'core->mac[VET]' directly.

Reported-by: Markus Carlstedt <markus.carlstedt@windriver.com>
Signed-off-by: Christina Wang <christina.wang@windriver.com>
Signed-off-by: Bin Meng <bin.meng@windriver.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2021-08-02 12:19:18 +08:00
Christina Wang
a1d7e475be hw/net: e1000: Correct the initial value of VET register
The initial value of VLAN Ether Type (VET) register is 0x8100, as per
the manual and real hardware.

While Linux e1000 driver always writes VET register to 0x8100, it is
not always the case for everyone. Drivers relying on the reset value
of VET won't be able to transmit and receive VLAN frames in QEMU.

Reported-by: Markus Carlstedt <markus.carlstedt@windriver.com>
Signed-off-by: Christina Wang <christina.wang@windriver.com>
Signed-off-by: Bin Meng <bin.meng@windriver.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2021-08-02 12:19:18 +08:00
Pavel Pisa
11744862f2 hw/net/can: sja1000 fix buff2frame_bas and buff2frame_pel when dlc is out of std CAN 8 bytes
Problem reported by openEuler fuzz-sig group.

The buff2frame_bas function (hw\net\can\can_sja1000.c)
infoleak(qemu5.x~qemu6.x) or stack-overflow(qemu 4.x).

Reported-by: Qiang Ning <ningqiang1@huawei.com>
Cc: qemu-stable@nongnu.org
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Pavel Pisa <pisa@cmp.felk.cvut.cz>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2021-08-02 12:19:18 +08:00
Thomas Huth
9010b0c7a9 hw/net/vmxnet3: Do not abort QEMU if guest specified bad queue numbers
QEMU should never terminate unexpectedly just because the guest is
doing something wrong like specifying wrong queue numbers. Let's
simply refuse to set the device active in this case.

Buglink: https://bugs.launchpad.net/qemu/+bug/1890160
Signed-off-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2021-08-02 12:19:18 +08:00
Thomas Huth
283f0a05e2 hw/net/net_tx_pkt: Fix crash detected by fuzzer
QEMU currently crashes when it's started like this:

cat << EOF | ./qemu-system-i386 -device vmxnet3 -nodefaults -qtest stdio
outl 0xcf8 0x80001014
outl 0xcfc 0xe0001000
outl 0xcf8 0x80001018
outl 0xcf8 0x80001004
outw 0xcfc 0x7
outl 0xcf8 0x80001083
write 0x0 0x1 0xe1
write 0x1 0x1 0xfe
write 0x2 0x1 0xbe
write 0x3 0x1 0xba
writeq 0xe0001020 0xefefff5ecafe0000
writeq 0xe0001020 0xffff5e5ccafe0002
EOF

It hits this assertion:

qemu-system-i386: ../qemu/hw/net/net_tx_pkt.c:453: net_tx_pkt_reset:
 Assertion `pkt->raw' failed.

This happens because net_tx_pkt_init() is called with max_frags == 0 and
thus the allocation

    p->raw = g_new(struct iovec, max_frags);

results in a NULL pointer that causes the

    assert(pkt->raw);

in net_tx_pkt_reset() to fail later. To fix this issue we can check
that max_raw_frags was not zero before asserting that pkt->raw is
a non-NULL pointer.

Buglink: https://bugs.launchpad.net/qemu/+bug/1890157
Message-Id: <20210715193219.1132571-1-thuth@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Pankaj Gupta <pankaj.gupta@ionos.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2021-07-19 09:33:39 +02:00
Thomas Huth
6a932c4ed8 hw/net/vmxnet3: Do not abort if the guest is trying to use an invalid TX queue
QEMU should never abort just because the guest is doing something odd.
Let's simply log the error and ignore the bad transmit queue instead.

Buglink: https://bugs.launchpad.net/qemu/+bug/1926111
Message-Id: <20210715103755.1035566-1-thuth@redhat.com>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2021-07-19 09:33:39 +02:00
Daniel P. Berrangé
96916f36c4 net/rocker: use GDateTime for formatting timestamp in debug messages
The GDateTime APIs provided by GLib avoid portability pitfalls, such
as some platforms where 'struct timeval.tv_sec' field is still 'long'
instead of 'time_t'. When combined with automatic cleanup, GDateTime
often results in simpler code too.

Reviewed-by: Juan Quintela <quintela@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2021-07-14 14:15:52 +01:00
Mark Cave-Ayland
39d9919f4b dp8393x: don't force 32-bit register access
Commit 3fe9a838ec "dp8393x: Always use 32-bit accesses" set .impl.min_access_size
and .impl.max_access_size to 4 to try and fix the Linux jazzsonic driver which uses
32-bit accesses.

The problem with forcing the register access to 32-bit in this way is that since the
dp8393x uses 16-bit registers, a manual endian swap is required for devices on big
endian machines with 32-bit accesses.

For both access sizes and machine endians the QEMU memory API can do the right thing
automatically: all that is needed is to set .impl.min_access_size to 2 to declare that
the dp8393x implements 16-bit registers.

Normally .impl.max_access_size should also be set to 2, however that doesn't quite
work in this case since the register stride is specified using a (dynamic) it_shift
property which is applied during the MMIO access itself. The effect of this is that
for a 32-bit access the memory API performs 2 x 16-bit accesses, but the use of
it_shift within the MMIO access itself causes the register value to be repeated in both
the top 16-bits and bottom 16-bits. The Linux jazzsonic driver expects the stride to be
zero-extended up to access size and therefore fails to correctly detect the dp8393x
device due to the extra data in the top 16-bits.

The solution here is to remove .impl.max_access_size so that the memory API will
correctly zero-extend the 16-bit registers to the access size up to and including
it_shift. Since it_shift is never greater than 2 than this will always do the right
thing for both 16-bit and 32-bit accesses regardless of the machine endian, allowing
the manual endian swap code to be removed.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Fixes: 3fe9a838ec ("dp8393x: Always use 32-bit accesses")
Message-Id: <20210705214929.17222-2-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Finn Thain <fthain@linux-m68k.org>
Tested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
2021-07-11 22:29:54 +02:00
Philippe Mathieu-Daudé
82adabf7e5 dp8393x: Rewrite dp8393x_get() / dp8393x_put()
Instead of accessing N registers via a single address_space API
call using a temporary buffer (stored in the device state) and
updating each register, move the address_space call in the
register put/get. The load/store and word size checks are moved
to put/get too. This simplifies a bit, making the code easier
to read.

Co-developed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Co-developed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Tested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Tested-by: Finn Thain <fthain@linux-m68k.org>
Message-Id: <20210710174954.2577195-8-f4bug@amsat.org>
2021-07-11 22:29:54 +02:00
Philippe Mathieu-Daudé
8ac2ffb584 dp8393x: Store CAM registers as 16-bit
Per the DP83932C datasheet from July 1995:

  4.0 SONIC Registers
  4.1 THE CAM UNIT

    The Content Addressable Memory (CAM) consists of sixteen
    48-bit entries for complete address filtering of network
    packets. Each entry corresponds to a 48-bit destination
    address that is user programmable and can contain any
    combination of Multicast or Physical addresses. Each entry
    is partitioned into three 16-bit CAM cells accessible
    through CAM Address Ports (CAP 2, CAP 1 and CAP 0) with
    CAP0 corresponding to the least significant 16 bits of
    the Destination Address and CAP2 corresponding to the
    most significant bits.

Store the CAM registers as 16-bit as it simplifies the code.

Having now the CAM registers as arrays of 3 uint16_t, we can avoid
using the VMSTATE_BUFFER_UNSAFE macro by using VMSTATE_UINT16_2DARRAY
which is more appropriate. This breaks the migration stream however.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Tested-by: Finn Thain <fthain@linux-m68k.org>
Message-Id: <20210710174954.2577195-5-f4bug@amsat.org>
Tested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
2021-07-11 22:29:54 +02:00
Philippe Mathieu-Daudé
67b38ddfe5 dp8393x: Replace 0x40 magic value by SONIC_REG_COUNT definition
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Tested-by: Finn Thain <fthain@linux-m68k.org>
Message-Id: <20210710174954.2577195-3-f4bug@amsat.org>
Tested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
2021-07-11 22:29:54 +02:00
Philippe Mathieu-Daudé
197ade0d11 dp8393x: Replace address_space_rw(is_write=1) by address_space_write()
Replace address_space_rw(is_write=1) by address_space_write()
and remove pointless cast.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Tested-by: Finn Thain <fthain@linux-m68k.org>
Message-Id: <20210710174954.2577195-2-f4bug@amsat.org>
Tested-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
2021-07-11 22:29:54 +02:00
Mark Cave-Ayland
85e411d7ff dp8393x: fix CAM descriptor entry index
Currently when a LOAD CAM command is executed the entries are loaded into the
CAM from memory in order which is incorrect. According to the datasheet the
first entry in the CAM descriptor is the entry index which means that each
descriptor may update any single entry in the CAM rather than the Nth entry.

Decode the CAM entry index and use it store the descriptor in the appropriate
slot in the CAM. This fixes the issue where the MacOS toolbox loads a single
CAM descriptor into the final slot in order to perform a loopback test which
must succeed before the Ethernet port is enabled.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Tested-by: Finn Thain <fthain@linux-m68k.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20210625065401.30170-10-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2021-07-11 22:29:54 +02:00
Peter Maydell
05de778b5b pc,pci,virtio: bugfixes, improvements
vhost-user-rng support.
 Fixes all over the place.
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging

pc,pci,virtio: bugfixes, improvements

vhost-user-rng support.
Fixes all over the place.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

# gpg: Signature made Wed 07 Jul 2021 14:29:30 BST
# gpg:                using RSA key 5D09FD0871C8F85B94CA8A0D281F0DB8D28D5469
# gpg:                issuer "mst@redhat.com"
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>" [full]
# gpg:                 aka "Michael S. Tsirkin <mst@redhat.com>" [full]
# Primary key fingerprint: 0270 606B 6F3C DF3D 0B17  0970 C350 3912 AFBE 8E67
#      Subkey fingerprint: 5D09 FD08 71C8 F85B 94CA  8A0D 281F 0DB8 D28D 5469

* remotes/mst/tags/for_upstream:
  MAINTAINERS: Add maintainer for vhost-user RNG implementation
  docs: add slot when adding new PCIe root port
  acpi/ged: fix reset cause
  tests: acpi: pc: update expected DSDT blobs
  acpi: pc: revert back to v5.2 PCI slot enumeration
  tests: acpi: prepare for changing DSDT tables
  migration: failover: reset partially_hotplugged
  virtio-pci: Changed return values for "notify", "device" and "isr" read.
  virtio-pci: Added check for virtio device in PCI config cbs.
  virtio-pci: Added check for virtio device presence in mm callbacks.
  hw/pci-host/q35: Ignore write of reserved PCIEXBAR LENGTH field
  virtio: Clarify MR transaction optimization
  virtio: disable ioeventfd for record/replay

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-07-09 14:30:01 +01:00
Peter Maydell
711c0418c8 MIPS patches queue
- Extract nanoMIPS, microMIPS, Code Compaction from translate.c
 - Allow PCI config accesses smaller than 32-bit on Bonito64 device
 - Fix migration of g364fb device on Jazz Magnum
 - Fix dp8393x PROM checksum on Jazz Magnum and Quadra 800
 - Map the UART devices unconditionally on Jazz Magnum
 - Add functional test booting Linux on the Fuloong 2E
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Merge remote-tracking branch 'remotes/philmd/tags/mips-20210702' into staging

MIPS patches queue

- Extract nanoMIPS, microMIPS, Code Compaction from translate.c
- Allow PCI config accesses smaller than 32-bit on Bonito64 device
- Fix migration of g364fb device on Jazz Magnum
- Fix dp8393x PROM checksum on Jazz Magnum and Quadra 800
- Map the UART devices unconditionally on Jazz Magnum
- Add functional test booting Linux on the Fuloong 2E

# gpg: Signature made Fri 02 Jul 2021 16:36:19 BST
# gpg:                using RSA key FAABE75E12917221DCFD6BB2E3E32C2CDEADC0DE
# gpg: Good signature from "Philippe Mathieu-Daudé (F4BUG) <f4bug@amsat.org>" [full]
# Primary key fingerprint: FAAB E75E 1291 7221 DCFD  6BB2 E3E3 2C2C DEAD C0DE

* remotes/philmd/tags/mips-20210702:
  hw/mips/jazz: Map the UART devices unconditionally
  hw/mips/jazz: specify correct endian for dp8393x device
  hw/m68k/q800: fix PROM checksum and MAC address storage
  qemu/bitops.h: add bitrev8 implementation
  dp8393x: remove onboard PROM containing MAC address and checksum
  hw/m68k/q800: move PROM and checksum calculation from dp8393x device to board
  hw/mips/jazz: move PROM and checksum calculation from dp8393x device to board
  dp8393x: convert to trace-events
  dp8393x: checkpatch fixes
  g364fb: add VMStateDescription for G364SysBusState
  g364fb: use RAM memory region for framebuffer
  tests/acceptance: Test Linux on the Fuloong 2E machine
  hw/pci-host/bonito: Allow PCI config accesses smaller than 32-bit
  hw/pci-host/bonito: Trace PCI config accesses smaller than 32-bit
  target/mips: Extract nanoMIPS ISA translation routines
  target/mips: Extract the microMIPS ISA translation routines
  target/mips: Extract Code Compaction ASE translation routines
  target/mips: Add declarations for generic TCG helpers

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-07-04 14:04:12 +01:00
Laurent Vivier
109c20ea28 migration: failover: reset partially_hotplugged
When the card is plugged back, reset the partially_hotplugged flag to false

Bug: https://bugzilla.redhat.com/show_bug.cgi?id=1787194
Signed-off-by: Laurent Vivier <lvivier@redhat.com>
Message-Id: <20210629152937.619193-1-lvivier@redhat.com>
Reviewed-by: Juan Quintela <quintela@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2021-07-03 03:12:35 -04:00
Mark Cave-Ayland
c3250c8e6b dp8393x: remove onboard PROM containing MAC address and checksum
According to the datasheet the dp8393x chipset does not contain any NVRAM capable
of storing a MAC address or checksum. Now that both the MIPS jazz and m68k q800
boards generate the PROM region and checksum themselves, remove the generated
PROM from the dp8393x device itself.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Tested-by: Finn Thain <fthain@linux-m68k.org>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20210625065401.30170-6-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2021-07-02 17:35:08 +02:00
Mark Cave-Ayland
c0af04a436 dp8393x: convert to trace-events
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Finn Thain <fthain@linux-m68k.org>
Message-Id: <20210625065401.30170-3-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2021-07-02 17:35:08 +02:00
Mark Cave-Ayland
1ca82a8db0 dp8393x: checkpatch fixes
Also fix a simple comment typo of "constrainst" to "constraints".

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Tested-by: Finn Thain <fthain@linux-m68k.org>
Message-Id: <20210625065401.30170-2-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
2021-07-02 17:35:08 +02:00
Kevin Wolf
50de51387f vhost: Distinguish errors in vhost_dev_get_config()
Instead of just returning 0/-1 and letting the caller make up a
meaningless error message, add an Error parameter to allow reporting the
real error and switch to 0/-errno so that different kind of errors can
be distinguished in the caller.

config_len in vhost_user_get_config() is defined by the device, so if
it's larger than VHOST_USER_MAX_CONFIG_SIZE, this is a programming
error. Turn the corresponding check into an assertion.

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20210609154658.350308-6-kwolf@redhat.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Reviewed-by: Raphael Norwitz <raphael.norwitz@nutanix.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2021-06-30 13:18:42 +02:00
Kevin Wolf
a6945f2287 vhost: Add Error parameter to vhost_dev_init()
This allows callers to return better error messages instead of making
one up while the real error ends up on stderr. Most callers can
immediately make use of this because they already have an Error
parameter themselves. The others just keep printing the error with
error_report_err().

Signed-off-by: Kevin Wolf <kwolf@redhat.com>
Message-Id: <20210609154658.350308-2-kwolf@redhat.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Reviewed-by: Raphael Norwitz <raphael.norwitz@nutanix.com>
Signed-off-by: Kevin Wolf <kwolf@redhat.com>
2021-06-30 13:15:44 +02:00
Peter Maydell
1cbd2d9149 -----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
 
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 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/jasowang/tags/net-pull-request' into staging

# gpg: Signature made Fri 04 Jun 2021 08:26:16 BST
# gpg:                using RSA key EF04965B398D6211
# gpg: Good signature from "Jason Wang (Jason Wang on RedHat) <jasowang@redhat.com>" [marginal]
# gpg: WARNING: This key is not certified with sufficiently trusted signatures!
# gpg:          It is not certain that the signature belongs to the owner.
# Primary key fingerprint: 215D 46F4 8246 689E C77F  3562 EF04 965B 398D 6211

* remotes/jasowang/tags/net-pull-request:
  MAINTAINERS: Added eBPF maintainers information.
  docs: Added eBPF documentation.
  virtio-net: Added eBPF RSS to virtio-net.
  ebpf: Added eBPF RSS loader.
  ebpf: Added eBPF RSS program.
  net: Added SetSteeringEBPF method for NetClientState.
  net/tap: Added TUNSETSTEERINGEBPF code.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-06-04 13:38:49 +01:00
Andrew Melnychenko
0145c39348 virtio-net: Added eBPF RSS to virtio-net.
When RSS is enabled the device tries to load the eBPF program
to select RX virtqueue in the TUN. If eBPF can be loaded
the RSS will function also with vhost (works with kernel 5.8 and later).
Software RSS is used as a fallback with vhost=off when eBPF can't be loaded
or when hash population requested by the guest.

Signed-off-by: Yuri Benditovich <yuri.benditovich@daynix.com>
Signed-off-by: Andrew Melnychenko <andrew@daynix.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2021-06-04 15:25:46 +08:00
Stefano Garzarella
d0fb9657a3 docs: fix references to docs/devel/tracing.rst
Commit e50caf4a5c ("tracing: convert documentation to rST")
converted docs/devel/tracing.txt to docs/devel/tracing.rst.

We still have several references to the old file, so let's fix them
with the following command:

  sed -i s/tracing.txt/tracing.rst/ $(git grep -l docs/devel/tracing.txt)

Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20210517151702.109066-2-sgarzare@redhat.com>
Signed-off-by: Thomas Huth <thuth@redhat.com>
2021-06-02 06:51:09 +02:00
Peter Maydell
a648df3889 -----BEGIN PGP SIGNATURE-----
Version: GnuPG v1
 
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 3KBzjhUi7QyFWgQY5xFQcMWwob8McOJOUGX4EQERm8EbHy8VhpugCHinqLPqf38=
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 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/jasowang/tags/net-pull-request' into staging

# gpg: Signature made Thu 27 May 2021 04:06:17 BST
# gpg:                using RSA key EF04965B398D6211
# gpg: Good signature from "Jason Wang (Jason Wang on RedHat) <jasowang@redhat.com>" [marginal]
# gpg: WARNING: This key is not certified with sufficiently trusted signatures!
# gpg:          It is not certain that the signature belongs to the owner.
# Primary key fingerprint: 215D 46F4 8246 689E C77F  3562 EF04 965B 398D 6211

* remotes/jasowang/tags/net-pull-request:
  tap-bsd: Remove special casing for older OpenBSD releases
  virtio-net: failover: add missing remove_migration_state_change_notifier()
  hw/net/imx_fec: return 0xffff when accessing non-existing PHY

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-05-28 22:55:56 +01:00
Laurent Vivier
1e157667d7 virtio-net: failover: add missing remove_migration_state_change_notifier()
In the failover case configuration, virtio_net_device_realize() uses an
add_migration_state_change_notifier() to add a state notifier, but this
notifier is not removed by the unrealize function when the virtio-net
card is unplugged.

If the card is unplugged and a migration is started, the notifier is
called and as it is not valid anymore QEMU crashes.

This patch fixes the problem by adding the
remove_migration_state_change_notifier() in virtio_net_device_unrealize().

The problem can be reproduced with:

  $ qemu-system-x86_64 -enable-kvm -m 1g -M q35 \
    -device pcie-root-port,slot=4,id=root1 \
    -device pcie-root-port,slot=5,id=root2 \
    -device virtio-net-pci,id=net1,mac=52:54:00:6f:55:cc,failover=on,bus=root1 \
    -monitor stdio disk.qcow2
  (qemu) device_del net1
  (qemu) migrate "exec:gzip -c > STATEFILE.gz"

  Thread 1 "qemu-system-x86" received signal SIGSEGV, Segmentation fault.
  0x0000000000000000 in ?? ()
  (gdb) bt
  #0  0x0000000000000000 in  ()
  #1  0x0000555555d726d7 in notifier_list_notify (...)
      at .../util/notify.c:39
  #2  0x0000555555842c1a in migrate_fd_connect (...)
      at .../migration/migration.c:3975
  #3  0x0000555555950f7d in migration_channel_connect (...)
      error@entry=0x0) at .../migration/channel.c:107
  #4  0x0000555555910922 in exec_start_outgoing_migration (...)
      at .../migration/exec.c:42

Reported-by: Igor Mammedov <imammedo@redhat.com>
Reviewed-by: Dr. David Alan Gilbert <dgilbert@redhat.com>
Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Laurent Vivier <lvivier@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2021-05-27 11:03:55 +08:00
Guenter Roeck
f607dce2ed hw/net/imx_fec: return 0xffff when accessing non-existing PHY
If a PHY does not exist, attempts to read from it should return 0xffff.
Otherwise the Linux kernel will believe that a PHY is there and select
the non-existing PHY. This in turn will result in network errors later
on since the real PHY is not selected or configured.

Since reading from or writing to a non-existing PHY is not an emulation
error, replace guest error messages with traces.

Fixes: 461c51ad42 ("Add a phy-num property to the i.MX FEC emulator")
Cc: Jean-Christophe Dubois <jcd@tribudubois.net>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Tested-by: Bin Meng <bmeng.cn@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2021-05-27 11:03:07 +08:00
Peter Maydell
6005ee07c3 pc,pci,virtio: bugfixes, improvements
Fixes all over the place. Faster boot for virtio. ioeventfd support for
 mmio.
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
 -----BEGIN PGP SIGNATURE-----
 
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 -----END PGP SIGNATURE-----

Merge remote-tracking branch 'remotes/mst/tags/for_upstream' into staging

pc,pci,virtio: bugfixes, improvements

Fixes all over the place. Faster boot for virtio. ioeventfd support for
mmio.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

# gpg: Signature made Fri 14 May 2021 15:27:13 BST
# gpg:                using RSA key 5D09FD0871C8F85B94CA8A0D281F0DB8D28D5469
# gpg:                issuer "mst@redhat.com"
# gpg: Good signature from "Michael S. Tsirkin <mst@kernel.org>" [full]
# gpg:                 aka "Michael S. Tsirkin <mst@redhat.com>" [full]
# Primary key fingerprint: 0270 606B 6F3C DF3D 0B17  0970 C350 3912 AFBE 8E67
#      Subkey fingerprint: 5D09 FD08 71C8 F85B 94CA  8A0D 281F 0DB8 D28D 5469

* remotes/mst/tags/for_upstream:
  Fix build with 64 bits time_t
  vhost-vdpa: Make vhost_vdpa_get_device_id() static
  hw/virtio: enable ioeventfd configuring for mmio
  hw/smbios: support for type 41 (onboard devices extended information)
  checkpatch: Fix use of uninitialized value
  virtio-scsi: Configure all host notifiers in a single MR transaction
  virtio-scsi: Set host notifiers and callbacks separately
  virtio-blk: Configure all host notifiers in a single MR transaction
  virtio-blk: Fix rollback path in virtio_blk_data_plane_start()
  pc-dimm: remove unnecessary get_vmstate_memory_region() method
  amd_iommu: fix wrong MMIO operations
  virtio-net: Constify VirtIOFeature feature_sizes[]
  virtio-blk: Constify VirtIOFeature feature_sizes[]
  hw/virtio: Pass virtio_feature_get_config_size() a const argument
  x86: acpi: use offset instead of pointer when using build_header()
  amd_iommu: Fix pte_override_page_mask()

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

# Conflicts:
#	hw/arm/virt.c
2021-05-16 17:22:46 +01:00
Philippe Mathieu-Daudé
ad6461ad6e virtio-net: Constify VirtIOFeature feature_sizes[]
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Message-Id: <20210511104157.2880306-4-philmd@redhat.com>
2021-05-14 08:12:09 -04:00
Markus Armbruster
9d49bcf699 Drop the deprecated lm32 target
Target lm32 was deprecated in commit d849800512, v5.2.0.  See there
for rationale.

Some of its code lives on in device models derived from milkymist
ones: hw/char/digic-uart.c and hw/display/bcm2835_fb.c.

Cc: Michael Walle <michael@walle.cc>
Signed-off-by: Markus Armbruster <armbru@redhat.com>
Message-Id: <20210503084034.3804963-2-armbru@redhat.com>
Acked-by: Michael Walle <michael@walle.cc>
[Trivial conflicts resolved, reST markup fixed]
2021-05-12 18:20:25 +02:00
Thomas Huth
ee86213aa3 Do not include exec/address-spaces.h if it's not really necessary
Stop including exec/address-spaces.h in files that don't need it.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20210416171314.2074665-5-thuth@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2021-05-02 17:24:51 +02:00
Thomas Huth
2068cabd3f Do not include cpu.h if it's not really necessary
Stop including cpu.h in files that don't need it.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20210416171314.2074665-4-thuth@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2021-05-02 17:24:51 +02:00
Thomas Huth
4c386f8064 Do not include sysemu/sysemu.h if it's not really necessary
Stop including sysemu/sysemu.h in files that don't need it.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20210416171314.2074665-2-thuth@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2021-05-02 17:24:50 +02:00
Thomas Huth
19f4ed3652 hw: Do not include qemu/log.h if it is not necessary
Many files include qemu/log.h without needing it. Remove the superfluous
include statements.

Signed-off-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Message-Id: <20210328054833.2351597-1-thuth@redhat.com>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
2021-05-02 17:24:50 +02:00
Jason Wang
56e6f594bf Revert "net: Move NetClientState.info_str to dynamic allocations"
Several issues has been reported for query-netdev info
series. Consider it's late in the rc, this reverts commit
commit 59b5437eb7.

Signed-off-by: Jason Wang <jasowang@redhat.com>
2021-04-08 17:33:59 +08:00
Bin Meng
611ac0a60f hw/net: fsl_etsec: Tx padding length should exclude CRC
As the comment of tx_padding_and_crc() says: "Never add CRC in QEMU",
min_frame_len should excluce CRC, so it should be 60 instead of 64.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Message-Id: <20210316081505.72898-1-bmeng.cn@gmail.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
2021-03-31 11:10:50 +11:00
Doug Evans
a62ee00aa0 net/npcm7xx_emc.c: Fix handling of receiving packets when RSDR not set
Turning REG_MCMDR_RXON is enough to start receiving packets.

Signed-off-by: Doug Evans <dje@google.com>
Message-id: 20210319195044.741821-1-dje@google.com
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
2021-03-30 14:05:33 +01:00
Bin Meng
d4c6293041 hw/net: virtio-net: Initialize nc->do_not_pad to true
For virtio-net, there is no need to pad the Ethernet frame size to
60 bytes before sending to it.

Signed-off-by: Bin Meng <bmeng.cn@gmail.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2021-03-22 17:34:31 +08:00
Alexey Kirillov
59b5437eb7 net: Move NetClientState.info_str to dynamic allocations
The info_str field of the NetClientState structure is static and has a size
of 256 bytes. This amount is often unclaimed, and the field itself is used
exclusively for HMP "info network".

The patch translates info_str to dynamic memory allocation.

This action is also allows us to painlessly discard usage of this field
for backend devices.

Signed-off-by: Alexey Kirillov <lekiravi@yandex-team.ru>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2021-03-15 16:41:22 +08:00
Alexander Bulekov
37cee01784 lan9118: switch to use qemu_receive_packet() for loopback
This patch switches to use qemu_receive_packet() which can detect
reentrancy and return early.

This is intended to address CVE-2021-3416.

Cc: Prasad J Pandit <ppandit@redhat.com>
Cc: qemu-stable@nongnu.org
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com
Signed-off-by: Alexander Bulekov <alxndr@bu.edu>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2021-03-15 16:41:22 +08:00
Alexander Bulekov
e73adfbeec cadence_gem: switch to use qemu_receive_packet() for loopback
This patch switches to use qemu_receive_packet() which can detect
reentrancy and return early.

This is intended to address CVE-2021-3416.

Cc: Prasad J Pandit <ppandit@redhat.com>
Cc: qemu-stable@nongnu.org
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Alexander Bulekov <alxndr@bu.edu>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2021-03-15 16:41:22 +08:00
Alexander Bulekov
99ccfaa1ed pcnet: switch to use qemu_receive_packet() for loopback
This patch switches to use qemu_receive_packet() which can detect
reentrancy and return early.

This is intended to address CVE-2021-3416.

Cc: Prasad J Pandit <ppandit@redhat.com>
Cc: qemu-stable@nongnu.org
Buglink: https://bugs.launchpad.net/qemu/+bug/1917085
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com
Signed-off-by: Alexander Bulekov <alxndr@bu.edu>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2021-03-15 16:41:22 +08:00
Alexander Bulekov
5311fb805a rtl8139: switch to use qemu_receive_packet() for loopback
This patch switches to use qemu_receive_packet() which can detect
reentrancy and return early.

This is intended to address CVE-2021-3416.

Cc: Prasad J Pandit <ppandit@redhat.com>
Cc: qemu-stable@nongnu.org
Buglink: https://bugs.launchpad.net/qemu/+bug/1910826
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com
Signed-off-by: Alexander Bulekov <alxndr@bu.edu>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2021-03-15 16:41:22 +08:00
Jason Wang
8c552542b8 tx_pkt: switch to use qemu_receive_packet_iov() for loopback
This patch switches to use qemu_receive_receive_iov() which can detect
reentrancy and return early.

This is intended to address CVE-2021-3416.

Cc: Prasad J Pandit <ppandit@redhat.com>
Cc: qemu-stable@nongnu.org
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2021-03-15 16:41:22 +08:00
Jason Wang
8c92060d3c sungem: switch to use qemu_receive_packet() for loopback
This patch switches to use qemu_receive_packet() which can detect
reentrancy and return early.

This is intended to address CVE-2021-3416.

Cc: Prasad J Pandit <ppandit@redhat.com>
Cc: qemu-stable@nongnu.org
Reviewed-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Alistair Francis <alistair.francis@wdc.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2021-03-15 16:41:22 +08:00
Jason Wang
26194a58f4 msf2-mac: switch to use qemu_receive_packet() for loopback
This patch switches to use qemu_receive_packet() which can detect
reentrancy and return early.

This is intended to address CVE-2021-3416.

Cc: Prasad J Pandit <ppandit@redhat.com>
Cc: qemu-stable@nongnu.org
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Signed-off-by: Jason Wang <jasowang@redhat.com>
2021-03-15 16:41:22 +08:00
Jason Wang
331d2ac9ea dp8393x: switch to use qemu_receive_packet() for loopback packet
This patch switches to use qemu_receive_packet() which can detect
reentrancy and return early.

This is intended to address CVE-2021-3416.

Cc: Prasad J Pandit <ppandit@redhat.com>
Cc: qemu-stable@nongnu.org
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com
Signed-off-by: Jason Wang <jasowang@redhat.com>
2021-03-15 16:41:22 +08:00